Photographic-printing apparatus



(No Model.) 3 Sheets-Sheet l. R. J. WYNKOOP & J. M. KEMP.

PHOTOGRAPHIG PRINTING APPARATUS.

Patented June 2'7, 1893.

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R. J. WYNKOOP 8v J. M. KEMP. PHOTOGRAPHIO PRINTING APPARATUS.

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R. J. WYNKOOP 8v J. M. KEMP. PHOTOGRAPHIG PRINTING APPARATUS.

No. 500,180. Patented June 27, 1893.

UNITED STATES PATENT ()EEIcE.

RICHARD JOHN WYNKOOP AND JOHN MORIS KEMP, OF PATERSON, NEV JERSEY.

PHOTOGRAPHlC-PRINTING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 500,180, dated June 27,1893.

Application filed June 21, 1892. Serial No. 437,538. (No model.)

To all whom it may concern.-

Beit known that we, RICHARD JOHN WrN- KOOP and JOHN MORIS KEMP, ofPaterson, in the county of Passaic and State of New J ersey, haveinvented certain new and useful Improvements in Photographers PrintingApparatus; and we do hereby declare the following to be a full, clear,and exact description of the invention, such as will enable othersskilled in the art to which it appertains to make and use the same.

Our invention relates to an improvement in photographic printingapparatus, the object being to provide a device adapted morepartlcularly for the use of amateur photographers and to this end itcomprises few parts, is simple and inexpensive, and above all is devoidof complexity so that only ordinary skill is required in itsmanipulation.

In the accompanying drawings, Figure 1 is a plan view of the apparatusshowing it in its closed position. Fig. 2, is a view in end elevationshowing the parts closed in full lines and the shutter opened in dottedlines. Fig. 3 is a plan showing the apparatus open. Fig. 4 1s a view intransverse sect-ion and Fig. 5 is a longitudinal section.

A represents the base or main frame of the apparatus. This base or frameis provided with an opening 1 and in this opening a pad 2 is yieldinglysupported by means of springs 3, 3, stops 4., 4, being secured over theedges of the pad to retain it in the opening. At one end of the base aroll box or receptacle 5 is formed and in this the roll a containing thesensitized film 1) upon which the printing is to be done is contained.The cover 6 for inclosing this roll is hinged at one end of the base andadapted to fold inwardly toward the pad. Lip 7 is formed on the inneredge of the cover beneath which the paper is drawn and over which oneedge of the negative frame rests when the latter is closed. This lip andthe frame below are lined with felt 7 to exclude light from the roll.

B represents the negative frame having an opening 6 corresponding withthe opening in the base. This frame is hinged preferably at one edge tothe corresponding edge of the base or main frame and it is adapted whenclosed to cover the main portion of the base or all that portion notcovered by the roll holder cover 6. The usual number of glass plates,transparent and ground are held in this negative frame on the inner andouter surfaces as at a and Z) and on its inner surface, the negativeframe is furnished with an adjustable negative holder. Said holder isusually form ed in the following manner: Narrow strips 10, 10 aresecured at the opposite edges of the opening I) and at one end of thesestrips a plate 11 is secured beneath which one end of the negative isadapted to be held. The plate 12 which holds the opposite end of thenegative in place corresponds substantially with plate 11 but instead ofbeing secured in place in the negative-frame, is constructed to slide onthe strips 10, 10. A simple construction for accomplishing this is theone shown in which the plate 12 is provided with overlapping projections13, 13, which loosely embrace the edges of the guide strips 10, 10 sothat the plate may be slid thereon to different positions.

In order to exclude light from that portion of the paper lying acrossthe pad in excess of that covered by the negative, a curtain 14 isemployed. This is secured at one edge to the sliding plate 12 and itsopposite end is secured to and rolled over a spring roller 15 after themanner of an ordinary window curtain, the spring acting to always holdthe curtain taut and to thus roll up the slack just as fast as it iscreated by enlarging the negative holder, also on the other hand itstension should not be sufficient to slide the plate 12 automatically.

From the foregoing it will be seen that the holder is adjusted to thesize of the negative, the negative having first been placed in theholder. The plate 12 is provided with pins 17, 17, which penetrate thepaper when the apparatus is closed for the purpose of holding itin placeand also the perforations formed indicate about where the paper is to beout by the knife. Theknife referred to comprises the two blades 18 and19. These are located at the end farthest from the roll, one blade beingsecured to the base and the other to the negative frame so that eachtime the parts are closed the paper coming between the blades is cut.The blade 18 is practically flush with the inner face of the base andthe blade 10 preferably projects inward some distance beyond the face ofthe negative frame and arecess 20 is formed for it in the base justoutside of blade 18. In this manner the blade acts as atongue inaddition to its main function as a cutter, with recess 20 as its groovethus excluding light at this point. Beyond the groove, the edge of thebase is cut away a trifle at 21 to allow the paper to pass through. Theopening Z) in the negative frame is kept closed by ashutter 22. Thisshutter is hinged by preference at the same edge of the negative framethat the frame itself is hinged and as shown if desired the hinges maybe so constructed to both join the negative frame to the base, and theshutter to the negative frame. In other words the most approved form ofhinges for the purpose are compound hinges, although this constructionis not at all necessary. The shutter is held closed by a pivotedspring-actuated latch 23 which is provided with an inclining inner facewhereby it is forced back out of the way when the shutter is closed, thespring acting to throw it instantly in engagement with the shutter whenthe latter falls into position. The latch is provided with a thumb-piece24 by which it is depressed in order to unlock the shutter.

The shutter is opened and closed and the negative frame is swung on itshinges when unlocked, by the following means. A spring arm 27 is pivotedat one end to one end of the negative frame, it being held normallydepressed by means of aspring 28 at its pivot. The location and shape ofthis arm is such that its free end strikes a roller 29 on an arm 30projectingfrom the base. This arm is also furnished with a stiff spring31secured to alateral projection 33 the free end of which spring isadapted to engage a hanger 32 depending from one of the shutter hinges.This hanger is provided with shoulders to confine its vibrations withincertain prescribed limits, and it has a spring which throws it normallyforward far enough to be engaged by the spring 31. When the frame isclosed and the spring 31 and hanger 32 are in engagement with eachother, the spring 31 is under its greatest tension and the tendency isto throw the shutter open, and the moment the shutter is unlocked itflies open in consequence. But it is necessary that it should fly shutpromptly also. For this purpose, we provide an adjustable stop 35. Thisconsists of a slotted plate having an outwardly bent toe 36 at one endin position to strike a yielding abutment 38 on the edge of the negativeframe. The stop is set outward or inward in order to increase ordiminish the speed of the shutter by means of a thumb nut 37. A springlatch 40 is provided for locking the negative frame and the basetogether and this latch has a knob or handle 41 as a convenient meansfor operating it.

The adjustment and operation of the parts is as follows:-To open theframe the operator takes the handle and the knob 41 between his thumband fore finger pressing the two together slightly until unlocked. Thenegative frame is then swung open just long enough to adjust the paper.In doing this, the shutter mechanism is automatically adjusted foroperation. In other words when the negative frame is swung upward say toan angle of about forty-five degrees the free end of spring 31 due tothe relative positions of the parts will have pushed the hanger 32 asideand descended to the frame. The spring in the hanger then causesthishanger to swing back to its normal position. Now as the negativeframe is closed, the arm 27 striking the roller 29 forces the arm upwardand the spring 31 is prevented from passing by the hanger, so that inthis way tension is given the spring which has the effect of opening theshutter when allowed to expend its energy which it does the moment theshutter is unlocked. Then the parts are in this position the tendencyalso is to hold the negative frame up so that aslight pressure isnecessary to close it.

To effectually exclude light from the interior of the apparatus whenclosed the inner surfaces of all these parts are painted black in theusual manner and further they are furnished with tongues and grooves atthe edges so far as possiblein order to form lighttight joints allaround the paper.

Having fully described our invention, what we claim as new, and desireto secure by Letters Patent, is

1. In a photographic printing apparatus the combination with a negativeframe constructed to receive and hold the usual glass plates, of anadjustable negative holder, and a curtain connected with one of theparts of the holder and adapted to exclude light from that portion ofthe sensitized paper which is not to be printed upon, substantially asset forth.

2. In a photographic printing apparatus the combination with a negativeframe, ofanegative holder comprising a stationary and a movable part,the movable part having pins adapted to penetrate and hold the paperbeing printed upon, a curtain connected with this movable part of theholder and a spring roller for holding this curtain and keeping it taut,substantially as set forth.

In a photographic printing apparatus the combination with a main frameor base having a yielding pad supported therein, a roll holder at oneend of this frame or base, and a hinged cover for the roll holder, of anegative frame hinged to the main-frame or base, said negative frameadapted to lock the roll holder cover closed when it is closed itselfand means for fastening this negative frame closed, substantially as setforth.

4. In a photographic printing apparatus the combination with a mainframe or base, the latter having a roll holder formed at one end, acover hinged at the outer edge of this roll holder, said cover providedwith a lip along its free edge, of a negative frame hinged to one edgeof the main frame or base, this negative frame constructed to overlapthe lip when closed and the tWo frames and cover having tongue andgroove joints formed around their edges, substantially as set forth.

5. In a photographic printing apparatus the combination with a mainframe or base, of a negative frame hinged to the base, these partshaving tongue and groove joints formed at one or more of their edges, toexclude light, and cutters comprising a pair of blades, one secured tothe base and one to the negative frame, one blade adapted to projectinto a groove in the base to form a tongue and groove joint at thispoint, substantially as set forth.

6. In a photographic printing apparatus the combination with a mainframe or base, and a negative frame hinged thereto, of an adj ustablenegative holder in one of these parts, said holder having means thereonfor holding the sensitized paper in position, and cutting blades, onesecured to the base and one to the negative frame, substantially as setforth.

7. In a photographic printing apparatus, the combination with two frameshinged together, and a shutter hinged to one of these frames,

of a shutter operating mechanism pivoted to one frame and bearingoutwardly against the other frame and against the shutter at the endopposite the pivot when the parts are closed, said parts automaticallyset in these positions by the outward swinging movement of one of theframes, substantially as set forth.

8. In a photographic printing apparatus, the combination with a pair offrames hinged together, and a shutter hinged to one of the frames, of ashutter operating mechanism comprising an arm or lever pivoted at oneend to one frame, the other end bearing upon the other frame, said armor lever having a spring thereon the outer end of which bears upon theshutter, said parts automatically set by the opening and closing of theapparatus, substantially as set forth.

In testimony whereof we have signed this specification in the presenceof two subscribing witnesses.

RICHARD JOHN WYNKOOP. JOHN MORIS KEMP. Witnesses:

W. F. LANIGAN, JAMES D. GRAY.

